Itheon has brought out a compact version of its network emulator technology for developers who need to check how their games or applications will perform in the real world.
Based on Windows XP-Embedded, the portable device allows users to simulate WAN connections with all sorts of error conditions.
For example, it can simulate …

There are free alternatives

When your reputation depends on it...

We use Itheon's WAN emulators to help people correctly size International WANs costing 10s of thousands a year. Whilst I agree there are many useful free tools available, if I used one as the basis for such important recommendations and got it wrong I'd be out of a job!